/*
 * Copyright (c) 2016—2017 Andrei Tomashpolskiy and individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package bt.dht;

import bt.module.ProtocolModule;
import bt.module.ServiceModule;
import bt.protocol.handler.PortMessageHandler;
import com.google.inject.Binder;
import com.google.inject.Module;

/**
 * @since 1.1
 */
public class DHTModule implements Module {

    private DHTConfig config;

    /**
     * @since 1.1
     */
    public DHTModule() {
        this.config = new DHTConfig();
    }

    /**
     * @since 1.1
     */
    public DHTModule(DHTConfig config) {
        this.config = config;
    }

    @Override
    public void configure(Binder binder) {
        binder.bind(DHTConfig.class).toInstance(config);

        ServiceModule.extend(binder).addPeerSourceFactory(DHTPeerSourceFactory.class);
        ProtocolModule.extend(binder).addHandshakeHandler(DHTHandshakeHandler.class);
        ProtocolModule.extend(binder).addMessageHandler(PortMessageHandler.PORT_ID, PortMessageHandler.class);

        // this service contributes startup lifecycle bindings and should be instantiated eagerly
        binder.bind(DHTService.class).to(MldhtService.class).asEagerSingleton();
    }
}
